DS2502P-UNW-PPPP ,UniqueWare Add-Only MemoryDS2502/5/6-UNWTMUniqueWare Add-Only Memorywww.dalsemi.comSPECIAL
DS2502S ,1 kbit Add-Only MemoryDS2502/5/6-UNWTMUniqueWare Add-Only Memorywww.dalsemi.comSPECIAL
DS2502X1-00B-00 ,1Kb Add-Only MemoryDS25021 kbit Add-Only Memorywww.dalsemi.com
DS2505 ,16kb Add-Only Memoryapplications include storage of calibration constants, maintenance records, asset tracking, product ..
DS2505 ,16kb Add-Only MemoryFEATURES PIN ASSIGNMENT 16384 bits Electrically Programmable Read TSOC PACKAGE TO-92Only Memory ..
DS2505 ,16kb Add-Only Memoryblock diagram in Figure 1 shows the relationships between the major control and memory sections of ..
E53NA50 ,NABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Drain-source Voltage (V =0) 500 VDS GSV 500 VD ..
EA2-12 ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
EA2-12NU ,COMPACT AND LIGHTWEIGHTFEATURESª Low power consumptionª Compact and light weightª 2 form c contact arrangementª Low magnet ..
EA2-12S ,COMPACT AND LIGHTWEIGHTFEATURESª Low power consumptionª Compact and light weightª 2 form c contact arrangementª Low magnet ..
EA2-12TNU ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
EA2-4.5NU ,COMPACT AND LIGHTWEIGHTAPPLICATIONSElectronic switching systems, PBX, key telephone systems, automatic test equipment and ..
DS2502P-UNW-PPPP
UniqueWare Add-Only Memory
SPECIAL FEATURES 1024 bits, 16 kbits or 64 kbits Electrically
Programmable Read Only Memory (EPROM)
communicates with the economy of one
signal plus ground Unique, factory-lasered and tested 64-bitregistration number (8-bit family code, 36-bit
serialization, 12-bit UniqueWare identifier
5E7H, 8-bit CRC-tester) assures absolute
traceability because no two parts are alike. Built-in multidrop controller ensurescompatibility with other MicroLAN products EPROM partitioned into 256-bit pages for
randomly accessing packetized data records Each memory page can be permanently write-
protected to prevent tampering§ Device is an “add only” memory where
additional data can be programmed into
EPROM without disturbing existing data Reduces control, address, data, power andprogramming signals to a single pin Directly connects to a single port pin of a
microprocessor and communicates at up to
16.3k bits per second Presence detector acknowledges when reader
first applies voltage§ Low cost TO-92/PR-35 or 8-pin SOIC and
TSOC surface mount packages Reads over a wide voltage range of 2.8V to
6.0V from -40°C to +85°C
PIN ASSIGNMENT
PIN ASSIGNMENT
TO-92/PR-35TSOCSOICPin 1GroundGroundNC
Pin 2DataDataNC
Pin 3NCNCData
Pin 4-----NCGroundPins 5 to 8-----NCNC
SILICON LABEL DESCRIPTIONUniqueWare Add-Only Memories are factory programmed versions of the DS2502 (1024 bit), the
DS2505 (16-kbit) and the DS2506 (64k bit) Add-Only Memories, respectively. They differ from the
regular devices in their custom ROM family codes (see Ordering Information) and the UniqueWare
Identifier 5E7 in place of the upper 12 bits of the standard serialization field. For technical details on thedevices please refer to the DS2502, DS2505 and DS2506 data sheets.
UniqueWareTM Add-Only MemoryTOP VIEW
TSOC PACKAGE
Drawings Section
Drawings SectionSee Mech.
Drawings Section
DS2502/5/6-UNW
depending on the length of the customer-supplied data. This leaves up to three (DS2502-UNW), 63(DS2505-UNW) or 255 (DS2506-UNW) memory pages available for programming in the application.
For more details on UniqueWare and how to set up data files, please refer to the UniqueWare Project
Setup Manual, available as Application Note 99 from Dallas Semiconductor. The UniqueWare Project
Setup Software is available from the Dallas Semiconductor FTP Site at
ftp://ftp.dalsemi.com/pub/auto_id, file name "unwsetup.exe."
ORDERING INFORMATION
Memory SizeFamily CodePackageOrdering Part Number1024 bits89hTO-92 packageDS2502-UNW-pppp
(4 pages)8-pin 150 mil SOIC pkg.DS2502S-UNW-pppp6-pin TSOC packageDS2502P-UNW-pppp
16k bits8BhTO-92 packageDS2505-UNW-pppp
(64 pages)6-pin TSOC packageDS2505P-UNW-pppp
64k bits8FhPR-35 packageDS2506-UNW-pppp(256 pages)8-pin 208 mil SOIC pkg.DS2506S-UNW-pppp
pppp stands for the Project ID assigned to each individual data pattern at the time of the first order.
Sample UniqueWare Data Structures
SAMPLE 1: ETHERNET NODE ADDRESS Figure 1ahigh addresslow address
PHYSICAL ADDRESS AND DATA MAPPING Figure 1bxx xx = CRC16, value depends on actual data
ch cm cl = high, medium and low byte of the IEEE assigned “Company ID”
hh mm ll = high, medium and low byte of the “Extension ID” or serializationpp pp = Project ID assigned by Dallas Semiconductor
DS2502/5/6-UNW
SAMPLE 2: EUI-64 FireWireTM NODE ADDRESS Figure 2ahigh addresslow address
PHYSICAL ADDRESS AND DATA MAPPING Figure 2bxx xx = CRC16, value depends on actual datach cm cl = high, medium and low byte of the IEEE assigned “Company ID”
hh hm mm ml ll = high, medium and low byte of the “Extension ID” or serialization
pp pp = Project ID assigned by Dallas Semiconductor
FireWireTM is a trademark of Apple Computer, Inc.
This datasheet has been :
www.ic-phoenix.com
Datasheets for electronic components.
